import 'package:enjoy_plus_three/utils/toast.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:geolocator/geolocator.dart';
import 'package:permission_handler/permission_handler.dart';

import '../../../utils/http.dart';

class LocationList extends StatefulWidget {
  const LocationList({super.key});

  @override
  State<LocationList> createState() => _LocationListState();
}

class _LocationListState extends State<LocationList> {
  String apiKey = 'ec6f580a9ed57f6731978c15a3a50fb1';
  String baseUrl = 'https://restapi.amap.com/v3';

  List nearbyCommunities = [];
  String address = '';

  @override
  void initState() {
    super.initState();

    //  Latitude: 37.4219983, Longitude: -122.084
    // 40.065956, 116.350077
    // queryNearbyCommunities(40.065956, 116.350077);
    // reverseGeocoding(40.065956, 116.350077);
    // getCurrentLocation();
    requestLocationPermission();
  }

  Future<void> requestLocationPermission() async {
    PermissionStatus status = await Permission.location.request();
    if (status.isGranted) {
      // 权限未授予
      ToastUtil.showSuccess('位置权限授予');
      getCurrentLocation();
    } else {
      // 权限未授予
      ToastUtil.showError('位置权限未授予');
    }
  }

  Future<void> getCurrentLocation() async {
    late LocationSettings locationSettings;

    if (defaultTargetPlatform == TargetPlatform.android) {
      locationSettings = AndroidSettings(
          accuracy: LocationAccuracy.high,
          distanceFilter: 100,
          forceLocationManager: true,
          intervalDuration: const Duration(seconds: 10),
          foregroundNotificationConfig: const ForegroundNotificationConfig(
            notificationText:
            "Example app will continue to receive your location even when you aren't using it",
            notificationTitle: "Running in Background",
            enableWakeLock: true,
          ));
    } else if (defaultTargetPlatform == TargetPlatform.iOS ||
        defaultTargetPlatform == TargetPlatform.macOS) {
      locationSettings = AppleSettings(
        accuracy: LocationAccuracy.high,
        activityType: ActivityType.fitness,
        distanceFilter: 100,
        pauseLocationUpdatesAutomatically: true,
        // Only set to true if our app will be started up in the background.
        showBackgroundLocationIndicator: false,
      );
    } else if (kIsWeb) {
      locationSettings = WebSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 100,
        maximumAge: const Duration(minutes: 5),
      );
    } else {
      locationSettings = const LocationSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 100,
      );
    }

    try {
      Position position = await Geolocator.getCurrentPosition(
          locationSettings: locationSettings);
      ToastUtil.showSuccess('${position.latitude}, ${position.longitude}');
      print('当前位置 $position');
      queryNearbyCommunities(position.latitude, position.longitude);
      reverseGeocoding(position.latitude, position.longitude);
    } catch (e) {
      print(e.toString());
    }
  }

  Future<void> reverseGeocoding(double latitude, double longitude) async {
    String url =
        '$baseUrl/geocode/regeo?key=$apiKey&location=$longitude,$latitude';
    try {
      var response = await http.get(url);
      // print(response['regeocode']['formatted_address']);
      setState(() {
        address = response['regeocode']['formatted_address'];
      });
    } catch (e) {
      print('查询过程中出现错误: $e');
    }
  }

  Future<void> queryNearbyCommunities(double latitude, double longitude) async {
    String url =
        '$baseUrl/place/around?key=$apiKey&location=$longitude,$latitude&radius=500&types=住宅小区';
    try {
      var response = await http.get(url);
      for (var element in (response['pois'] as List)) {
        // print(element['name']);
        setState(() {
          nearbyCommunities.add(element);
        });
      }
    } catch (e) {
      print('查询过程中出现错误: $e');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text('选择社区'),
        ),
        body: ListView(
          padding: const EdgeInsets.all(10),
          children: [
            const Row(
              children: [
                Text(
                  '当前地址',
                  style: TextStyle(color: Colors.grey),
                )
              ],
            ),
            const SizedBox(height: 10),
            Container(
              color: Colors.white,
              padding: const EdgeInsets.all(10),
              child: Row(
                children: [
                  Expanded(child: Text(address)),
                  const Row(
                    children: [
                      Icon(Icons.location_searching_outlined,
                          color: Colors.blue),
                      SizedBox(width: 2),
                      Text(
                        '重新定位',
                        style: TextStyle(color: Colors.blue),
                      ),
                    ],
                  )
                ],
              ),
            ),
            const SizedBox(height: 10),
            const Row(
              children: [
                Text(
                  '附近社区',
                  style: TextStyle(color: Colors.grey),
                )
              ],
            ),
            const SizedBox(height: 10),
            ListView(
                shrinkWrap: true,
                physics: const NeverScrollableScrollPhysics(),
                children: nearbyCommunities
                    .map((item) => GestureDetector(
                  onTap: () {
                    Navigator.pushNamed(context, '/building_list',
                        arguments: {'point': item['name']});
                  },
                  child: Container(
                      color: Colors.white,
                      padding: const EdgeInsets.all(10),
                      child: Row(children: [
                        Expanded(child: Text('${item['name']}')),
                        const Row(children: [
                          Icon(Icons.arrow_forward_ios,
                              size: 16, color: Colors.black),
                        ])
                      ])),
                ))
                    .toList())
          ],
        ));
  }
}